.ATT
File Extension

Having trouble opening .att extension? Don't panic! This page explains what att files are as well as suggests programs you may use to open att files. You can download these programs through this page.

What is an ATT file?

Att file extension has Web Form Post Data file type, which is associated with the "web files" category.

Post data file is typically generated by Web forms when submitting data through a Web browser. It stores Web form contents, which is sent to the recipient via an email message. The file comes with the “postdata.att” filename.

How to open ATT file?

Double click the att file to open it. The file will open automatically if file associations have been correctly installed and there is a proper program on your computer; if not, file associations may be corrupted and your OS either cannot find the proper program, or you might not have one for opening the file. First, we recommend downloading our utility to fix file association errors; then, you can download any program for opening the .att extension from the ones suggested below. If you are certain there is nothing wrong with the file associations, you may proceed to method 2 right away; besides, if you can't make up your mind when choosing the right program, use Universal File Viewer from the last method.

Method 2: Download the appropriate software

The given list provides programs which may be used for opening or converting the att file. Choose the proper program for your OS, and click it to start the download or proceed to the developer's website.

Programs that open ATT files

Method 3: Use universal file viewer

In addition to the list of programs above, we recommend using Universal File Viewer. This tool can open over 250 file extensions and, most likely, it will be able to open the att file as well. Download Universal File Viewer for your OS.